Pro: More power.
Con: More wear on motor than turbo.
Nah, boost is boost. 5psi supercharged boost will put wear on a motor the same as 5 psi turbo boost.
The reality is parasitic loss. A supercharger is driven off of the engine and uses horsepower to make horsepower. Typically a JRSC (roots blower) will use about 10-15 horsepower to turn it's self. For that reason (and the fact that the boost is not intercooled) a supercharger will put out less horsepower per psi than turbo. Not to discourage you, just giving you the facts :mrgreen: As a general rule of thumbs the main advantage of a supercharger will be driveabliity. Instant throttle response is the name of the game, no waiting for anything to spool. If your horsepower goals are fairly low (190-220hp) I would strongly recommend the JRSC.
In contrast, a turbo uses wasted exhaust energy to spin a turbine. Since a turbo uses otherwise wasted energy it is sometimes 30-40% more efficent than a supercharger. Turbos typically allow the user to incorporate a heat exchanger (intercooler) into the plumbing to cool down the compressed air from the turbo and make more power. Also one isn't limited by a specific sized turbo and thus one can choose a turbo that meets their needs. Food for thought, a well sized turbo can actually be more efficient, provide more boost (power potiential), and have almost zero lag. Thus making it a superior alternative to ANY type of supercharging (roots, whipple, or centrifical).
Hope this helps. :mrgreen:
